Cyanogen is a chemical compound with the formula C2N2, consisting of two carbon atoms and two nitrogen atoms. It is a highly toxic, flammable gas that has a faint, bitter almond odor. Cyanogen is often used in the production of plastics, resins, and other chemical products. It can also be formed as a byproduct in various chemical reactions involving cyanide compounds. Due to its toxicity, exposure to cyanogen should be avoided, and proper safety precautions should be taken when handling it.